Answer:
- mean: 70.4
- median: 67
- mode: no mode
- range: 55
Step-by-step explanation:
The mean is the average value: the sum divided by the number of numbers. The median is the middle number when they are written in increasing order. The mode is the number that appears most often. The range is the difference between the highest and lowest values.
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Sorted into increasing order, the numbers are ...
43, 57, 67, 87, 98
mean
The total of these values is
43 +57 +67 +87 +98 = 352
The mean is this sum divided by the number of contributors:
mean = 352/5 = 70.4
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median
The median of the 5 numbers is the middle (3rd) one:
median = 67
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mode
The mode is the most-repeated number. All of the numbers show up exactly once, so there is no mode.
mode: none
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range
The range is the difference between the highest and lowest values:
range = 98 -43
range = 55